[Frameworks] chemical disposal with septic system

[Ryder White]

Re: silver removal, it is my understanding that one can use a ball of steel
wool to replace the silver in the solution if you do not care about
recovering the silver easily. If you throw steel wool in a bucket of spent
fixer the iron from the steel wool will swap the silver in solution...the
result will be an iron-rich fixer solution (relatively harmless) and a
silver sludge. Filter the sludge and the rest can probably go down the
drain without consequence, although admittedly I've never done this on a
septic system.

I have a generally poor understanding of the finer points of chemistry, so
perhaps someone wants to clarify that...but as far as I know that is the
simplest silver recovery process.

Not sure if it works in reversal bleach as I've always considered that too
harmful to dump, silver or no silver.

R

On Tue, Aug 30, 2016 at 6:26 PM, George, Sherman <sgeorge at ucsd.edu> wrote:

> Sarah,
> There is no magnet to attract silver.
> For small batch processing precipitation is uncomplicated and inexpensive.
> Sherman
>
> Sent from my iPhone
> Sherman George
> 858-229-4368
>
>
> On Aug 30, 2016, at 18:00, Sarah Bliss <bliss at sarahblissart.com> wrote:
>
> Thanks Amanda, Scott, Pip, Sherman and David!  I very much appreciate all
> the info.
>
> I appreciate the links to Kodak’s info, Sherman.  Unfortunately, I’m not
> able to access further links from that page.  Seems I need program
> membership, but I don’t find info on what that is.
>
> Great to learn about onions as a temporary fix, Pip!
>
> Sounds like the most problematic chemicals are in bleach, fix, and
> hypoclear.   If spent chemicals are decanted and taken to a toxic waste
> site, how much of a concern are the trace chemicals and silver in washes?
> Many folks seem to think the impact on the septic system is not of major
> concern, which leaves me with a concern about drinking water and general
> environmental health.  Searches online bring up opinions running the gamut,
> but we’ll be drinking water that has these untreated chemicals in them.
>
> And do  I have it right that installing a silver recovery system is as
> simple as getting a special magnet that will attract the silver?
>
>
> Sarah
> http://www.SarahBlissArt.com <http://www.sarahblissart.com>
>
>
>
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